It appears just after the update of the beta 1.18.0.22. I launched the game that I'd created before the update and all items that I had in my inventory were white, grey or black. Whereas there's the crossbow and the telescope which are colored.
WEB-5336
All items are black and white
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We're tracking this issue in MCPE-145560, so this ticket is being resolved and linked as a duplicate.
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